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It's not always easy to tell a weed from a wild flower. Here are some tips for identifying that unknown plant that's popped up in your garden. There are three ways to identify weeds in your yard ...
Monitor the lawn regularly to identify and treat weed infestations early. Weeds often take advantage of disturbances to invade lawns. Areas where the lawn is thin are most likely to sprout weeds.
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Cannabis also has a long history of being used for medicinal purposes, and as a recreational drug known as marijuana or weed. Various cannabis strains have been bred, often selectively to produce high or low levels of tetrahydrocannabinol (THC), a cannabinoid and the plant's principal psychoactive constituent.
Weeds growing in the cracks of a concrete staircase (Epilobium roseum, Chelidonium majus, Oxalis corniculata, Plantago major)A weed is a plant considered undesirable in a particular situation, growing where it conflicts with human preferences, needs, or goals.
The detection window for body hair cannabis testing will be longer, because body hair grows slower than head hair and distorts the detection timeframe. Hair drug testing measures the marijuana parent metabolite embedded inside the hairshaft and eliminates external contamination as a source of a positive result.
Feral cannabis is an exceptionally hardy weed, widely dispersing its seeds which can lie dormant for 7–10 years before sprouting again. [4] In Minnesota, hemp is classified among the 11 "noxious prohibited weeds" along with several species of thistle, and noted for damaging farmers' plowing equipment. [5]
Weed identification may relate to History of plant systematics, the classification of plants; Botany, the study of plants; Taxonomy, the classification of living things;